*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:       #f4f5f7;
  --bg2:      #ffffff;
  --surface:  #ffffff;
  --surface2: #f4f5f7;
  --border:   #e8eaed;
  --border2:  #d1d5db;
  --accent:   #4361ee;
  --accent-light: rgba(67,97,238,0.08);
  --green:    #10b981;
  --green-dim: rgba(16,185,129,0.1);
  --red:      #ef4444;
  --red-dim:  rgba(239,68,68,0.08);
  --amber:    #f59e0b;
  --amber-dim: rgba(245,158,11,0.1);
  --text:     #111827;
  --text-2:   #6b7280;
  --text-3:   #9ca3af;
  --radius:   12px;
  --radius-sm: 8px;
  --shadow:   0 1px 3px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 1px 4px rgba(0,0,0,0.04);
  --font:     'Inter', system-ui, sans-serif;
  --mono:     'JetBrains Mono', 'Cascadia Code', monospace;
}

html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: var(--font); font-size: 14px; line-height: 1.6; min-height: 100vh; -webkit-font-smoothing: antialiased; }

/* ── Navbar ─────────────────────────────────────────────────────────────────── */
.navbar {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; gap: 20px;
  height: 60px; padding: 0 28px;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 var(--border);
}
.nav-brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon {
  width: 28px; height: 28px; border-radius: 7px;
  background: var(--accent); position: relative;
}
.brand-icon::after {
  content: ''; position: absolute; inset: 6px; border-radius: 3px;
  background: rgba(255,255,255,0.9); clip-path: polygon(50% 0%,100% 75%,0% 75%);
}
.brand-name { font-size: 15px; font-weight: 700; letter-spacing: -.4px; color: var(--text); }
.nav-center { display: flex; align-items: center; gap: 24px; margin: 0 auto; }
.nav-stat { text-align: center; }
.nav-stat-val { display: block; font-size: 15px; font-weight: 600; font-family: var(--mono); line-height: 1.2; color: var(--text); }
.nav-stat-val.danger { color: var(--red); }
.nav-stat-label { font-size: 10px; color: var(--text-3); text-transform: uppercase; letter-spacing: .7px; }
.nav-divider { width: 1px; height: 22px; background: var(--border); }
.nav-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.conn-badge { display: flex; align-items: center; gap: 6px; padding: 5px 12px; border-radius: 20px; background: var(--surface2); border: 1px solid var(--border); font-size: 12px; color: var(--text-2); }
.conn-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--text-3); transition: all .3s; }
.conn-badge.online .conn-dot  { background: var(--green); }
.conn-badge.online .conn-text { color: var(--green); }
.conn-badge.offline .conn-dot { background: var(--red); }
.conn-badge.offline .conn-text{ color: var(--red); }
.nav-btn {
  height: 34px; padding: 0 16px; border: 1px solid var(--border2); border-radius: var(--radius-sm);
  background: #fff; color: var(--text-2); font-family: var(--font); font-size: 13px; font-weight: 500;
  cursor: pointer; transition: all .15s; white-space: nowrap;
}
.nav-btn:hover { color: var(--text); background: var(--surface2); border-color: var(--border2); }
.nav-btn.accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.nav-btn.accent:hover { opacity: .88; }

/* User menu */
.user-menu { position: relative; cursor: pointer; }
.user-name {
  display: inline-flex; align-items: center; gap: 6px;
  height: 34px; padding: 0 14px; border-radius: var(--radius-sm);
  background: var(--surface2); border: 1px solid var(--border);
  font-size: 13px; color: var(--text-2);
}
.user-name::after { content: '▾'; font-size: 10px; color: var(--text-3); }
.user-name:hover { color: var(--text); border-color: var(--border2); }
.user-dropdown {
  position: absolute; right: 0; top: calc(100% + 6px);
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); min-width: 140px;
  box-shadow: var(--shadow-md); overflow: hidden; z-index: 200;
}
.dropdown-item { padding: 10px 16px; font-size: 13px; color: var(--text-2); cursor: pointer; transition: all .12s; }
.dropdown-item:hover { background: var(--surface2); color: var(--text); }
.dropdown-item.danger:hover { color: var(--red); }
.dropdown-sep { height: 1px; background: var(--border); }

/* ── Tabs ─────────────────────────────────────────────────────────────────── */
.tabs-bar {
  display: flex; gap: 2px; padding: 14px 28px 0;
  border-bottom: 1px solid var(--border);
  background: #fff;
}
.tab {
  height: 38px; padding: 0 18px; border-radius: 8px 8px 0 0;
  background: none; border: 1px solid transparent; border-bottom: none;
  color: var(--text-3); font-family: var(--font); font-size: 13px; font-weight: 500;
  cursor: pointer; transition: all .15s; position: relative; bottom: -1px;
}
.tab:hover { color: var(--text-2); background: var(--surface2); }
.tab.active { background: var(--bg); border-color: var(--border); border-bottom-color: var(--bg); color: var(--text); font-weight: 600; }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── Main ─────────────────────────────────────────────────────────────────── */
main { max-width: 1440px; margin: 0 auto; padding: 28px 28px 60px; }
.page-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 22px; }
.page-title { font-size: 18px; font-weight: 700; letter-spacing: -.4px; color: var(--text); }
.page-sub { font-size: 12px; color: var(--text-3); margin-top: 3px; }

/* ── Alert banner ─────────────────────────────────────────────────────────── */
.alert-banner {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; border-radius: var(--radius-sm);
  background: var(--red-dim); border: 1px solid rgba(239,68,68,.2);
  color: var(--red); font-size: 13px; margin-bottom: 18px;
}

/* ── Miners Grid ─────────────────────────────────────────────────────────── */
.miners-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(360px,1fr)); gap: 16px; }
.empty-state { grid-column:1/-1; display:flex; flex-direction:column; align-items:center; padding:80px 0; gap:12px; color:var(--text-3); }
.empty-title { font-size:15px; font-weight:600; color:var(--text-2); }
.empty-desc  { font-size:13px; }

/* ── Miner Card ──────────────────────────────────────────────────────────── */
.miner-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: border-color .2s, transform .15s, box-shadow .2s;
  box-shadow: var(--shadow);
}
.miner-card:hover { border-color: var(--border2); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.miner-card.offline { border-color: rgba(239,68,68,.2); opacity: .7; }

.card-top { display:flex; align-items:center; justify-content:space-between; padding:18px 20px 0; }
.card-identity { display:flex; align-items:center; gap:10px; }
.status-ring { width:32px; height:32px; border-radius:50%; display:flex; align-items:center; justify-content:center; background:var(--surface2); border:1px solid var(--border); flex-shrink:0; position:relative; }
.status-ring::after { content:''; width:8px; height:8px; border-radius:50%; background:var(--green); }
.status-ring.offline::after { background:var(--red); }
.status-ring.paused::after  { background:var(--amber); }
.card-name { font-size:15px; font-weight:600; letter-spacing:-.2px; color: var(--text); }
.card-id   { font-size:11px; color:var(--text-3); font-family:var(--mono); margin-top:1px; }
.card-badge { font-size:10px; font-weight:600; padding:3px 10px; border-radius:20px; letter-spacing:.4px; text-transform:uppercase; }
.card-badge.online  { background: rgba(16,185,129,0.1); color: var(--green); }
.card-badge.paused  { background: rgba(245,158,11,0.1); color: var(--amber); }
.card-badge.offline { background: rgba(239,68,68,0.1);  color: var(--red); }

.hashrate-hero { padding:16px 20px 0; display:flex; align-items:baseline; gap:6px; }
.hashrate-val  { font-size:36px; font-weight:300; letter-spacing:-2px; font-family:var(--mono); line-height:1; color: var(--text); }
.hashrate-unit { font-size:14px; color:var(--text-2); }

/* Sparkline */
.sparkline-wrap { padding:8px 20px 0; height:44px; }
.sparkline-wrap svg { width:100%; height:36px; }

.metrics-row {
  display:grid; grid-template-columns:repeat(3,1fr); padding:14px 20px;
  border-top:1px solid var(--border); margin-top:14px;
}
.metric+.metric { border-left:1px solid var(--border); padding-left:14px; }
.metric { padding-right:14px; }
.metric-label { font-size:10px; color:var(--text-3); text-transform:uppercase; letter-spacing:.6px; margin-bottom:3px; }
.metric-val   { font-size:15px; font-weight:600; font-family:var(--mono); color: var(--text); }
.metric-sub   { font-size:10px; color:var(--text-3); margin-top:1px; }

.pool-bar { padding:9px 20px; border-top:1px solid var(--border); display:flex; align-items:center; gap:8px; }
.pool-label { font-size:10px; color:var(--text-3); text-transform:uppercase; letter-spacing:.6px; flex-shrink:0; }
.pool-val   { font-size:12px; color:var(--text-2); font-family:var(--mono); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }

.card-actions { display:flex; border-top:1px solid var(--border); }
.card-action-btn {
  flex:1; height:40px; background:none; border:none; cursor:pointer;
  font-family:var(--font); font-size:12px; font-weight:500; color:var(--text-2); transition:all .15s; position:relative;
}
.card-action-btn+.card-action-btn::before { content:''; position:absolute; left:0; top:25%; bottom:25%; width:1px; background:var(--border); }
.card-action-btn:hover { background:var(--surface2); color:var(--text); }
.card-action-btn.green:hover { color:var(--green); background: var(--green-dim); }
.card-action-btn.amber:hover { color:var(--amber); background: var(--amber-dim); }
.card-action-btn.red:hover   { color:var(--red);   background: var(--red-dim); }

/* ── Sys Metrics ─────────────────────────────────────────────────────────── */
.sys-metrics { padding: 10px 20px 14px; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: 5px; }
.sys-row { display: flex; align-items: center; gap: 8px; }
.sys-label { font-size: 10px; color: var(--text-3); text-transform: uppercase; letter-spacing: .5px; width: 30px; flex-shrink: 0; }
.sys-bar { flex: 1; height: 3px; background: var(--border); border-radius: 2px; overflow: hidden; }
.sys-fill { height: 100%; background: var(--accent); border-radius: 2px; transition: width .6s ease; }
.sys-fill-mem  { background: var(--green); }
.sys-fill-disk { background: var(--amber); }
.sys-val { font-size: 10px; color: var(--text-2); font-family: var(--mono); width: 92px; text-align: right; flex-shrink: 0; }

/* Offline */
.offline-body { padding:20px; }
.offline-msg  { font-size:13px; color:var(--red); margin-bottom:10px; display:flex; align-items:center; gap:8px; }
.offline-time { font-size:12px; color:var(--text-3); }

/* ── Schedule list ──────────────────────────────────────────────────────────── */
.schedule-list { display:flex; flex-direction:column; gap:10px; margin-bottom:28px; }
.schedule-item {
  display:flex; align-items:center; gap:16px;
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius-sm); padding:16px 20px;
  box-shadow: var(--shadow); transition: border-color .15s, box-shadow .15s;
}
.schedule-item:hover { border-color:var(--border2); box-shadow: var(--shadow-md); }
.schedule-item.disabled { opacity:.5; }
.schedule-name  { font-weight:600; font-size:14px; color: var(--text); }
.schedule-meta  { font-size:12px; color:var(--text-3); margin-top:2px; }
.schedule-cron  { font-family:var(--mono); font-size:12px; color:var(--accent); background: var(--accent-light); padding:3px 10px; border-radius:6px; margin-left:auto; flex-shrink:0; }
.schedule-actions { display:flex; gap:8px; }
.icon-btn { width:30px; height:30px; border-radius:6px; background:var(--surface2); border:1px solid var(--border); cursor:pointer; color:var(--text-3); display:flex; align-items:center; justify-content:center; font-size:12px; transition:all .15s; }
.icon-btn:hover { color:var(--text); border-color:var(--border2); }
.icon-btn.red:hover { color:var(--red); border-color:rgba(239,68,68,.3); background: var(--red-dim); }
.toggle-pill { width:36px; height:20px; border-radius:10px; border:none; cursor:pointer; background:var(--border2); border:1px solid var(--border); transition:all .2s; position:relative; flex-shrink:0; }
.toggle-pill.on { background:var(--accent); border-color:var(--accent); }
.toggle-pill::after { content:''; position:absolute; top:2px; left:2px; width:14px; height:14px; border-radius:50%; background:#fff; transition:transform .2s; box-shadow: 0 1px 3px rgba(0,0,0,0.15); }
.toggle-pill.on::after { transform:translateX(16px); }

/* cron help */
.cron-help { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-sm); padding:18px 20px; box-shadow: var(--shadow); }
.help-title { font-size:12px; font-weight:600; color:var(--text-2); margin-bottom:12px; text-transform:uppercase; letter-spacing:.6px; }
.help-grid { display:grid; grid-template-columns:auto 1fr; gap:8px 16px; align-items:center; }
.help-grid code { font-family:var(--mono); font-size:12px; color:var(--accent); }
.help-grid span { font-size:12px; color:var(--text-3); }

/* ── Event log ──────────────────────────────────────────────────────────────── */
.event-list { display:flex; flex-direction:column; gap:4px; }
.event-item { display:flex; align-items:center; gap:14px; padding:11px 16px; border-radius:var(--radius-sm); background:var(--surface); border:1px solid var(--border); transition: border-color .12s; }
.event-item:hover { border-color: var(--border2); }
.event-dot { width:6px; height:6px; border-radius:50%; flex-shrink:0; }
.event-dot.online  { background:var(--green); }
.event-dot.offline { background:var(--red); }
.event-dot.alert   { background:var(--amber); }
.event-dot.schedule{ background:var(--accent); }
.event-dot.system  { background:var(--text-3); }
.event-miner { font-size:11px; font-family:var(--mono); color:var(--text-3); width:90px; flex-shrink:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.event-msg   { font-size:13px; color:var(--text-2); flex:1; }
.event-time  { font-size:11px; color:var(--text-3); font-family:var(--mono); flex-shrink:0; }

/* ── Modal ──────────────────────────────────────────────────────────────────── */
.modal-overlay { position:fixed; inset:0; z-index:200; background:rgba(0,0,0,0.3); backdrop-filter:blur(4px); display:flex; align-items:center; justify-content:center; padding:20px; }
.modal { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); width:420px; max-width:100%; display:flex; flex-direction:column; max-height:92vh; box-shadow: 0 20px 60px rgba(0,0,0,0.15); }
.modal.modal-wide { width:760px; }
.modal-header { display:flex; align-items:flex-start; justify-content:space-between; padding:22px 22px 0; }
.modal-title { font-size:16px; font-weight:700; letter-spacing:-.3px; color: var(--text); }
.modal-sub   { font-size:12px; color:var(--text-3); margin-top:3px; font-family:var(--mono); }
.modal-close { width:30px; height:30px; border-radius:var(--radius-sm); background:var(--surface2); border:1px solid var(--border); color:var(--text-2); cursor:pointer; display:flex; align-items:center; justify-content:center; font-size:13px; transition:all .15s; flex-shrink:0; }
.modal-close:hover { color:var(--text); border-color:var(--border2); }
.modal-footer { display:flex; justify-content:flex-end; gap:10px; padding:18px 22px 22px; }
.form-body { padding:18px 22px 0; display:flex; flex-direction:column; gap:14px; }
.field label { display:block; font-size:12px; color:var(--text-2); margin-bottom:6px; font-weight:500; }
.field-hint  { font-size:11px; color:var(--text-3); margin-top:5px; }
.field input, .field select { width:100%; height:40px; padding:0 12px; background:#fff; border:1px solid var(--border); border-radius:var(--radius-sm); color:var(--text); font-family:var(--font); font-size:13px; outline:none; transition:border-color .15s; }
.field input:focus, .field select:focus { border-color:var(--accent); box-shadow: 0 0 0 3px var(--accent-light); }
.sel { height:40px; padding:0 12px; background:#fff; border:1px solid var(--border); border-radius:var(--radius-sm); color:var(--text); font-family:var(--font); font-size:13px; outline:none; cursor:pointer; }
.sel.full { width:100%; }
#config-editor { margin:18px 22px 0; background:#f8f9fc; border:1px solid var(--border); border-radius:var(--radius-sm); color:#374151; caret-color:var(--accent); font-family:var(--mono); font-size:13px; line-height:1.7; padding:14px; resize:none; min-height:340px; outline:none; transition:border-color .15s; }
#config-editor:focus { border-color:var(--accent); box-shadow: 0 0 0 3px var(--accent-light); }
.modal-btn { height:36px; padding:0 20px; border-radius:var(--radius-sm); font-family:var(--font); font-size:13px; font-weight:500; cursor:pointer; transition:all .15s; }
.modal-btn.ghost   { background:#fff; border:1px solid var(--border); color:var(--text-2); }
.modal-btn.ghost:hover { border-color:var(--border2); color:var(--text); background:var(--surface2); }
.modal-btn.primary { background:var(--accent); border:1px solid var(--accent); color:#fff; }
.modal-btn.primary:hover { opacity:.88; }

/* Chart */
.chart-wrap { padding:22px 22px 8px; flex:1; min-height:280px; }

/* ── Toast ──────────────────────────────────────────────────────────────────── */
.toast { position:fixed; bottom:26px; right:26px; z-index:300; display:flex; align-items:center; gap:10px; padding:12px 18px; border-radius:var(--radius-sm); background:#fff; border:1px solid var(--border); font-size:13px; box-shadow: 0 8px 32px rgba(0,0,0,0.12); animation:toastIn .2s cubic-bezier(.34,1.56,.64,1); max-width:340px; color: var(--text); }
.toast::before { content:''; width:4px; height:4px; border-radius:50%; flex-shrink:0; background:var(--text-3); }
.toast.success::before { background:var(--green); }
.toast.error::before   { background:var(--red); }
.toast.warn::before    { background:var(--amber); }
@keyframes toastIn { from{transform:translateY(16px) scale(.95);opacity:0} to{transform:none;opacity:1} }

/* Scrollbar */
::-webkit-scrollbar { width:5px; height:5px; }
::-webkit-scrollbar-track { background:transparent; }
::-webkit-scrollbar-thumb { background:var(--border2); border-radius:3px; }

/* ── Toolbar / Sort / Filter ─────────────────────────────────────────────── */
.toolbar {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 18px; flex-wrap: wrap;
}
.toolbar-label {
  font-size: 11px; font-weight: 500; color: var(--text-3);
  text-transform: uppercase; letter-spacing: .7px; flex-shrink: 0; margin-right: 2px;
}
.sort-bar { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.chip {
  height: 28px; padding: 0 12px; border-radius: 14px;
  background: #fff; border: 1px solid var(--border);
  color: var(--text-3); font-family: var(--font); font-size: 12px; font-weight: 500;
  cursor: pointer; transition: all .15s; white-space: nowrap;
}
.chip:hover { color: var(--text); border-color: var(--border2); }
.chip.active {
  background: var(--accent-light); border-color: rgba(67,97,238,.3);
  color: var(--accent);
}

/* ── Mobile Responsive ───────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .nav-center { display: none; }
  .navbar { padding: 0 16px; gap: 12px; }
  .nav-right { gap: 8px; }
  .nav-btn { display: none; }
  .nav-btn.accent { display: inline-flex; padding: 0 12px; }
  main { padding: 20px 14px 48px; }
  .miners-grid { grid-template-columns: 1fr; gap: 12px; }
}

@media (max-width: 600px) {
  .navbar { height: 54px; }
  .brand-name { display: none; }
  .conn-badge { padding: 5px 8px; }
  .conn-text  { display: none; }
  .tabs-bar { padding: 10px 14px 0; }
  .tab { padding: 0 12px; font-size: 12px; }
  .page-header { flex-direction: column; gap: 10px; }
  .schedule-item { flex-wrap: wrap; gap: 10px; }
  .schedule-cron { margin-left: 0; }
  .event-item { gap: 8px; padding: 10px 12px; }
  .event-miner { width: 70px; }
  .modal { width: 100% !important; max-height: 96vh; margin: 0; border-radius: var(--radius) var(--radius) 0 0; }
  .modal-overlay { align-items: flex-end; padding: 0; }
  .modal.modal-wide { width: 100% !important; }
  #config-editor { min-height: 200px; }
  .chart-wrap { min-height: 200px; }
  .hashrate-val { font-size: 28px; }
  .metrics-row { grid-template-columns: 1fr 1fr; }
  .metric:nth-child(3) { grid-column: span 2; border-left: none; border-top: 1px solid var(--border); padding-top: 10px; margin-top: 2px; }
}